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Below you'll see everything we could locate for your search of “psyllid”
By Marcos Fava Neves The last Fundecitrus announcement (April 10) of the season for the Brazilian citrus crop was 398.35 million boxes. This includes: 77.48 million boxes of Hamlin, Westin and Rubi 18.02 million boxes of Valencia Americana and Valencia Argentina 118.47 million boxes of Pera Rio 139.62 million boxes of Valencia 44.76 million boxes of Natal (Navel) SEASON SUMMARY …
Column sponsored by the Citrus Research and Development Foundation (CRDF) On April 24, the CRDF board of directors approved research priorities for two separate research funding programs. One is for projects that will lead directly to the development of commercial products, tools or recommendations (Commercial Product Development Committee, CPDC-18). The other is for projects with broader, fundamental researchable questions (Research …
By Len Wilcox There’s a new research facility funded by California citrus growers to help combat huanglongbing (HLB), also known as citrus greening disease. The facility, located in Riverside, California, is the result of a 3-year cooperative effort of the University of California, Riverside (UC Riverside) and California citrus growers. Using funds provided by members of California Citrus Mutual (CCM), …
The total economic impact of California’s citrus industry is $7.117 billion according to a new study commissioned by the Citrus Research Board (CRB). “In updating our economic analysis, we selected a well-known expert, Bruce Babcock, Ph.D., a professor in the School of Public Policy at the University of California, Riverside, to conduct the research. His findings quantified the significant impact …
By Amit Levy and Choaa El-Mohtar When thinking about genetic engineering, the first thing that comes to mind is usually GMOs (genetically modified organisms) In a GMO, a plant genome is engineered to include additional genetic sequences, usually genes with some useful activity that give the plant an advantage. This method is called a stable method because genes will be …
Researchers at the University of California, Riverside (UCR) claim they have made an important step in understanding the molecular mechanism of huanglongbing (HLB). They believe they have found the mechanism by which the disease evades detection and destruction by the natural immune system of citrus trees. HLB, or citrus greening disease, has devastated groves in Asia, South America and the …
Jim Snively, vice president of grove operations at Southern Gardens Citrus, discusses his company’s management of HLB and the psyllids that spread it. He summarizes a presentation he made at the International Citrus Business Conference in March. “By reducing stress, the trees can deal with disease much better,” Snively says. “We’re doing this through continuous-type feeding or frequent feeding with …
By Lukasz L. Stelinski, Jawwad A. Qureshi and Philip A. Stansly Florida citrus is host to four main groups of mites categorized by differences in lineage and morphology. However, only rust mites, spider mites and broad mites historically cause economic damage to commercially grown citrus in the state. The fourth group, referred to as false spider mites, are vectors elsewhere …
A single breakthrough discovery for managing citrus greening in Florida in the future is unlikely, says a new report by the National Academies of Sciences, Engineering, and Medicine. The committee that wrote the report called for a systems approach to prioritize research on the disease and strategically distribute resources for research to effectively manage the disease, which is the most …
Water is a key ingredient in achieving a healthy citrus crop, but too little or too much can be detrimental. Two articles in the April issue of Citrus Industry magazine address irrigation management. In the first article, growers will learn about irrigation scheduling methods and get production pointers for trees impacted by HLB and Hurricane Irma. The second article looks …
New clues to how the bacteria associated with citrus greening infects the only insect that carries it could lead to a way to block the microbes’ spread from tree to tree, according to a study in Infection and Immunity by Agricultural Research Service (ARS) and Boyce Thompson Institute (BTI) scientists. Citrus greening, also known as huanglongbing (HLB), is a serious disease dramatically …
By Len Wilcox University of California Davis (UC Davis) researchers have identified the sex pheromone of the Asian citrus psyllid (ACP), a discovery which will lead to better methods of controlling the pest. The ACP is a major threat to citrus around the world. The psyllid is a tiny insect with the potential to wreak havoc as it spreads the …
Spoon-feeding nutrients through root systems and protecting new leaf flushes are among ways Jude Grosser believes growers can maintain tree health in the face of HLB. Grosser, a University of Florida Institute of Food and Agricultural Sciences professor, is best known as a citrus breeder. Grosser said he started working with nutrition because “like any grower, I don’t like to …
Gene Albrigo, University of Florida Institute of Food and Agricultural Sciences emeritus professor, reflects on the research that earned him a spot in the Florida Citrus Hall of Fame on March 9. “I tried to develop a program based on industry needs that I had some expertise to address, and working with people in the industry tried to solve some …
A California Superior Court judge has ordered the state’s Department of Food and Agriculture (CDFA) to temporarily stop spraying pesticides for agricultural pest control. The judge decided in favor of a lawsuit filed by 11 environmental activist groups and the city of Berkeley. Private citizens will still be able to use chemical insecticides on their property, but the order requires …
The impact of HLB on total citrus tree propagations, including the decline in grapefruit and growth in lemons, is addressed by nurseryman Nate Jameson. Jameson, owner of Brite Leaf Citrus Nursery, discusses some points he made at the annual Florida Citrus Show in January. “A few years ago we were propagating about 4.7 million trees a year,” Jameson says. “We’re …
Column sponsored by the Citrus Research and Development Foundation Plant growth regulators (PGRs) are chemicals that increase or decrease plant growth, flowering and/or fruit set. PGRs include some herbicides. This article summarizes research studies on how PGRs might aid in the management of HLB. Although several successful herbicide practices were developed by University of Florida Institute of Food and Agricultural …
University of Florida researchers assisted their neighbor to the north as they put together several presentations to help build the Georgia citrus industry. The presentations were made during the second annual Georgia Citrus Association Conference, which was held Feb. 26 at the University of Georgia Tifton Conference Center. Lindy Savelle, president of the Georgia Citrus Association, says she is very …
Lee Jones, general manager of Gardinier Florida Citrus, was one of several growers offering suggestions for upcoming HLB research at a recent Citrus Research and Development Foundation (CRDF) Research Management Committee session. He summarizes some of the suggestions he and others offered. Jones notes that several suggestions were made regarding bactericides, which growers got access to in spring 2016. He …
By Tacy Callies Citrus growers and researchers alike are learning more about the role intensive nutrition management plays in keeping HLB-infected trees productive. The March issue of Citrus Industry magazine provides two features on nutrition management. The first is a foliar nutrition research update from a team of University of Florida scientists. The article offers a summary of results on …
